SMV1263-079LF

Overview

The SMV1263-079LF is a silicon hyperabrupt junction varactor diode from Skyworks Solutions, designed for 3 V platforms. It features a single SC-79 (SOD-523) package with an inductance of 0.7 nH. Key electrical specifications include a maximum reverse voltage of 20 V and a forward current rating of 20 mA. At 1 MHz, the capacitance ranges from 6.2 pF to 7.2 pF at 0.5 V reverse bias, and 2.3 pF to 2.9 pF at 2.5 V reverse bias. The typical capacitance ratio (C_TR) is 2.5. Series resistance is typically 1.2 Ω at 900 MHz with 1 V reverse bias.

Feature Summary

• High capacitance ratio achieved at low reverse voltages
• Hyperabrupt junction tuning characteristics
• Moisture sensitivity level 1 rated for 260 °C reflow soldering

Applications

• Low-noise and wideband UHF and VHF Voltage Controlled Oscillators (VCOs)
• High-volume, low-cost battery-powered tuning circuits
• Wireless systems operating up to and over 2.5 GHz

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status via official documentation. Check for recent Product Change Notifications (PCNs) regarding manufacturing updates. Ensure proper ESD handling protocols are followed during storage and assembly to prevent damage.

Selection Notes

Select this component for applications requiring high capacitance ratios under low reverse voltage conditions. Verify that the 20 V reverse voltage limit meets system requirements. Consider the 0.7 nH series inductance for RF circuit design. Ensure compatibility with 3 V platform designs and standard surface mount assembly processes.

Part Context

The SMV1263-079LF belongs to the SMV1263 series of hyperabrupt junction tuning varactors. This series includes variants with different packaging options such as SOD-882 and SC-70. The -079 suffix specifically denotes the SC-79 package configuration with a 0.7 nH series inductance.

Replacement Considerations

SMV1263-040LF: SOD-882 package, 0.45 nH inductance. SMV1263-074LF: SC-70 package, 1.4 nH inductance.